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Summary of Contents for Audix MVPA
- Page 1 MVPA/VPA Amplifier User Manual Audix Systems, Station Road, Wenden, Saffron Walden, Essex, CB11 4LG. Telephone: +44(0)1799 540888 Facsimile: +44(0)1799 541618 www.tycosafetyproducts-europe.com www.audixsystems.co.uk MVPA / VPA Amplifier Manual V1.1 Page 1 of 11 21015 V1.1...
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Page 2: Revision History
© Copyright Audix Systems. 2005 DISCLAIMER This manual contains information that is correct to the best of Audix Systems knowledge. It is intended to be a guide and should be used as such. It should not be considered as a sole source of technical instruction, replacing good technical judgement, since all possible situations cannot be anticipated. -
Page 3: Table Of Contents
MVPA/VPA Amplifier User Manual CONTENTS REVISION HISTORY........................1 TECHNICAL SUPPORT ....................... 1 SPECIFICATION .................... 3 MPLIFIER ODEL ANGE .............. 4 MPLIFIER NTRODUCTION .............. 4 MPLIFIER LEEP ..............5 MPLIFIERS CHASSIS RONT ANEL ISPLAYS ....5 MPLIFIER DJUSTMENTS ETTINGS ......5... -
Page 4: Specification
Noise -80dB max Fault Monitoring Built in monitoring circuitry Detection and display of individual (Fitted in MVPA models only) PowerBloc Fail, Mains Fail, Battery Fail and Charger Fail. With general fault output to Monitoring System (FMS). Short circuit protection Indefinite operation into short cct load... -
Page 5: Amplifier Model Range
240W Amplifier Introduction Audix Systems 60 watt 'PowerBloc' amplifier modules are used individually or combined to provide 100 Volt line outputs of 60, 120, 180 or 240 Watts R.M.S. A rack mounting chassis/power supply occupying 3U of space holds up to four PowerBloc modules which may be arranged as four totally independent 60 watt amplifiers or in any of ten other output configurations (see paragraph 1.2... -
Page 6: Amplifier Sleep Mode
In order to allow the 20Khz surveillance signal through the system, the control matrix feeds a ‘wake-up’ signal to all power amplifiers. The purpose of this signal is to command Audix MOSFET PowerBlocs to switch from their very low power consumption mode (asleep) to their quiescent state (awake). This allows the surveillance tone to pass through amplifiers without missing the first part of the signal. - Page 7 MVPA/VPA Amplifier User Manual Not fitted Quiescent Current Front panel mounted lockable gain adjustment controls can be fitted (optional) to each Master PowerBloc. This allows user adjustment of audio levels, during system commissioning, which can be locked once set. Page 6 of 11...
- Page 8 MVPA/VPA Amplifier User Manual Link Settings for MPB260 & 261 Master / Slave. This 2 way jumper allows the Master Bloc to wake- up other associated slave Blocs in the same chassis. When fitted the audio input causes the amplifier to wake-up...
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Page 9: Amplifier Panel Arrangement (Mvpa1202)
MVPA/VPA Amplifier User Manual Amplifier Panel Arrangement (MVPA1202) AUDIX SYSTEMS Ω Ω Page 8 of 11 21015 V1.1... -
Page 10: Safety Considerations
1mm . The power cord must be BASEC or HAR approved with connectors complying with EN60320 and must provide a safety earth. Audix systems standby battery supply units (Models SBS241, SBS242, or SBS481) all include a separate fuse on each 24V dc output. The fuse rating on... -
Page 11: Heat Hazards
There is a potential temperature hazard around the rear an amplifier frame. The MVPA power amplifier heat sinks may become Very Hot. This is generally when alarm has been broadcast for a long period of time. Heating may also occur if amplifier power block is in a fault condition.
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